TITLE

Sensorless cutting force estimation in large scale ball-screw-driven machine tool

AUTHOR(S)
Yuki Yamada; Yasuhiro Kakinuma; Takamichi Ito; Jun Fujita; Atsushi Tada; Makoto Sagara
PUB. DATE
May 2015
SOURCE
Advanced Materials Research;2015, Vol. 806, p645
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
The cutting force is widely regarded as being the most valuable information when observing a metal cutting process. Considering practicability, indirect cutting force measurement methods which forego additional sensors have been studied in academic field. Disturbance observer-based cutting force estimation method was known as a typical example, and its validity was verified in linear motor driven stage. However, accurate cutting force estimation is still difficult in ball-screw driven stage because of non-linear friction and resonance. In this study, feasibility of sensorless cutting force estimation was verified by using large scale commercial machine tool. Considering that the motion of rotational and translational elements independently, cutting force observer (CFOB) was modeled as two-degree-of-freedom system. The CFOB was mounted to control systems of both stage and spindle head which were driven by ball-screw and servo motor. While friction force and torque have non-linear position dependence, high repeatability was confirmed. Thus, their non-linearity could be attenuated by identifying friction force and torque beforehand machining operation. From experimental results, it was shown that tooth-pass frequency and second harmonics component of the cutting forces could be estimated accurately by using the CFOB. The results were acquired from control systems of both stage and spindle head.
ACCESSION #
110788117

 

Related Articles

  • Planetary Mill with Friction Wheels Transmission Aided by an Additional Degree of Freedom. Camargo, Italo Leite de; Erbereli, Rogério; Lovo, João Fiore Parreira; Fortulan, Carlos Alberto // Machines;Jun2019, Vol. 7 Issue 2, p33 

    Processing in planetary ball mills is well suited to a large number of applications because they are easy to operate and versatile, grinding faster than other mills. Research related to planetary mills are mainly about the process evaluation, and there are few studies on the mechanical design of...

  • Analysis of the tool tip radial stiffness of turn-milling centers. Olvera, D.; Lacalle, L.; Compeán, F.; Fz-Valdivielso, A.; Lamikiz, A.; Campa, F. // International Journal of Advanced Manufacturing Technology;Jun2012, Vol. 60 Issue 9-12, p883 

    Modern industry requires high-precision machines and processes. This requirement implies the determination and reduction of all possible sources of error. For turning, a main error is related to machine-tool-workpiece deformation caused by cutting force. On the other hand, current turning...

  • Monitoring of Surface Roughness based on Cutting Force and Cutting Temperature in Ball-End Milling Process by Utilizing Response Surface Analysis. Yaisuk, Panrawee; Tangjitsitcharoen, Somkiat // Applied Mechanics & Materials;2015, Vol. 799-800, p324 

    The surface roughness is monitored using the cutting force and the cutting temperature in the ball-end milling process by utilizing the response surface analysis with the Box-Behnken design. The optimum cutting condition is obtained referring to the minimum surface roughness, which is the...

  • Workpiece locating error prediction and compensation in fixtures. Zhu, S.; Ding, G.; Ma, S.; Yan, K.; Qin, S. // International Journal of Advanced Manufacturing Technology;Jul2013, Vol. 67 Issue 5-8, p1423 

    In machining process, fixture is used to keep the position and orientation of a workpiece with respect to machine tool frame. However, the workpiece always cannot be at its ideal position because of the setup error and geometric inaccuracy of the locators, clamping force, cutting force, and so...

  • Variable angle compensation control of noncircular turning. Qiang, Li; Wu, Ai; Bing, Chen // International Journal of Advanced Manufacturing Technology;Jan2014, Vol. 70 Issue 1-4, p735 

    A fast tool feeding mechanism with 2 degrees of freedom was proposed in this paper. The mechanism was directly driven and could compensate for changes in the cutting angle caused by contour adjustments. A turning system with constant cutting angle and speed were designed with the mechanism,...

  • Sensorless cutting force estimation in large scale ball-screw-driven machine tool. Yuki Yamada; Yasuhiro Kakanuma; Takamichi Ito; Jun Fujita; Atsushi Tada; Makoto Sagara // Advanced Materials Research;2016, Vol. 1136, p645 

    The cutting force is widely regarded as being the most valuable information when observing a metal cutting process. Considering practicability, indirect cutting force measurement methods which forego additional sensors have been studied in academic field. Disturbance observer-based cutting force...

  • A new analytical tool-chip friction model in dry cutting. Zhou, Fangjuan // International Journal of Advanced Manufacturing Technology;Jan2014, Vol. 70 Issue 1-4, p309 

    To be much closer to the cutting process and the actual cutting phenomenon, a new tool-chip friction model proposed in this paper takes account of the thickness of the material transfer layer of the chip which is ignored by most existing friction models. The material transfer layer, in which the...

  • Optimal design of 3-DOF PKM module for friction stir welding. Shi, Jing; Wang, Yuhan; Zhang, Gang; Ding, Han // International Journal of Advanced Manufacturing Technology;Jun2013, Vol. 66 Issue 9-12, p1879 

    Friction stir welding (FSW) has recently emerged as a solid-joining technology for high-strength aluminum alloys and light metal welding. The large axial force to be maintained between the welding tool and workpiece is the primary requirement of FSW process, which has also been a great obstacle...

  • Erratum: Theory of activated rate processes in the weak and intermediate friction cases: New analytical results for one and many degrees of freedom [J. Chem. Phys. 100, 7331 (1994)]. Shushin, A. I. // Journal of Chemical Physics;11/1/1994, Vol. 101 Issue 9, p8266 

    Presents corrections to the article 'Theory of Activated Rate Processes in the Weak and Intermediate Friction Cases: New Analytical Results for One and Many Degrees of Freedom,' from the 1994 issue of the 'Journal of Chemical Physics.'

Share

Read the Article

Courtesy of THE LIBRARY OF VIRGINIA

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics